package com.young.requestlimit.advice;

import com.young.requestlimit.common.ResponseEnum;
import com.young.requestlimit.common.ServerResponseEntity;
import com.young.requestlimit.exception.RequestLimitException;
import org.springframework.core.MethodParameter;
import org.springframework.core.annotation.Order;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

import java.util.Optional;

/**
 * @Author mouyang
 * @Date 2023/09/21 16:22
 **/
@RestControllerAdvice
@Order(998)
public class ExceptionHanderAdvice implements ResponseBodyAdvice<Object> {
    @Override
    public boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType) {
        return true;
    }

    @Override
    public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType, Class<? extends HttpMessageConverter<?>> selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {
        return body;
    }

    @ExceptionHandler(RequestLimitException.class)
    public ServerResponseEntity<String> handleRequestLimitException(RequestLimitException e) {
        return ServerResponseEntity.fail(ResponseEnum.EXCEPTION.value(), Optional.ofNullable(e.getMessage()).orElse(ResponseEnum.EXCEPTION.getMsg()));
    }
}
